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Crystal Structure of the Highly Conserved RNA Internal Loop of SRP
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 298 MPD, Cacodylate buffer, MgCl2, CaCl2, spermidine, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.69 54.29
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 35.61 α = 90 b = 35.61 β = 90 c = 133.96 γ = 90
Symmetry Space Group P 43 2 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC QUANTUM 4 2001-05-01 M MAD
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-D 0.9196, 0.9193, 0.8985 APS 14-BM-D
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.7 50 99.9 18100 18086
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MAD 1.7 50 2 18086 17827 1677 0.2 0.2008 0.225 0.2205
Temperature Factor Modeling Anisotropic B[1][1] Anisotropic B[1][2] Anisotropic B[1][3] Anisotropic B[2][2] Anisotropic B[2][3] Anisotropic B[3][3]
RMS Deviations Key Refinement Restraint Deviation c_angle_deg 1.645 c_bond_d 0.0116
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 512 Solvent Atoms 107 Heterogen Atoms 7
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling SOLVE phasing CNS refinement